In a photoelectric effect monochromatic light is incident on a metal surface. If the incident light of twice the intensity but of same wavelength the kinetic energy of the emitted electron_______________?

Related Mcqs:

Tick the correct statement ?

A. the flight path of a vertically falling body appears straight to the stationary observer B. the flight path of vertically falling body appears parabolic to an observer in uniform relative motion C. all states of rest and motion are relative and there is no such thing as absolute motion D. all the above...

The relativistic energy E is equivalent to relativistic mass given by_______________?

A. Ec2 B. E/c2 C. E/c D. c2/E...

If a material object moves with speed of light its mass becomes ________________?

A. equal to its rest mass B. double of its rest mass C. infinite D. zero...

Rest mass of a photon is________________?

A. infinite B. zero C. very small D. 1.67 x 10-27 kg...

The velocity of a particle of mass m of de-Broglie wavelength λ is______________?

A. v = 3 ×× 106 ms-1 B. v = 2 ×× 10 ms-1 C. v = 2 ×× 6 ms-1 D. v = 2 ×× 106 ms-1...